By Finlay, Hugh, etc., Niven, Christine, etc.
By Niven, Christine, etc., et al
By Niven, Larry, Pournelle, Jerry
By Niven, Larry
By Niven, Alastair, Niven, Alastair
By Niven, Alastair
By Niven, Larry, Pournelle, Jerry, Barnes, Steven, Larry; Pournelle, Jerry; Barnes
By Niven, David
By Niven, Cyril
By Barnes, Steven, Niven, Larry, Pournelle, Jerry